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Container Size & Part Number

Aerosol can, case of 12       01-3187-78

5 gal / 18.9 L pail                  01-3187-40

20 gal / 75.7 L drum             01-3187-30

55 gal / 208 L drum              01-3187-45


Level 3 post-emulsifiable fluorescent penetrant for Method B, Method C and Method D liquid penetrant testing, QPL SAE AMS 2644 and Pratt & Whitney approved.

Level 3 Post Emulsifiable Fluorescent Penetrant

Post-emulsifiable ZL-27A is a Level 3, high-sensitivity Type 1 penetrant designed for inspections which require maximum process control and reliability, such as safety-critical aerospace testing.

Since ZL-27A is not water soluble, there is minimal risk of this penetrant being removed from a fine or shallow defect through over-washing to provide the highest reliability of any penetrant inspection method.

ZL-27A has a high flash point and provides long tank life when used in open dip tanks, but this penetrant can also be applied in a variety of other ways, including electrostatic spray.

To remove surface ZL-27A penetrant before developer application, use ZE-4E Method B lipophilic emulsifier or ZR-10E Method D hydrophilic emulsifier can be used.

ZL-27A is listed on the QPL SAE AMS 2644 Qualified Product List and is approved for use by Pratt & Whitney.

ZL-27A Product Data Sheet
ZL-27A Safety Data Sheet
ZL-27A Aerosol Safety Data Sheet